add docs, make it more user-friendly

.gitignore

@@ -11,3 +11,4 @@
 /kutinf/root-finder
 /modfizlab/221115.tar.xz
 /modfizlab/221115/
+/kutinf/nagyhazi/results.txt

README.org

@@ -3,4 +3,32 @@
 + fiznum2/Intel.c -> experiment to apply the rk4 to guess cpu frequencies based on previous models.
 + fiznum2/lapakk.c -> program to benchmark lapack svd against home-grown gauss elimination
 + modfizlab/labor1.scm -> script to generate latex tables from measured values for a laboratory
-+ kutinf -> programs for the korszám course
++ kutinf -> programs for the korszám course
+  + matrix:
+    #+begin_src bash
+      make matrix
+      ./matrix
+    #+end_src
+    + vector:
+    #+begin_src bash
+      make vector
+      ./vector
+    #+end_src
+    + newton-cotes:
+    #+begin_src bash
+      make newton-cotes
+      ./newton-cotes
+    #+end_src
+    + root-finder:
+    #+begin_src bash
+      make root-finder
+      ./root-finder
+    #+end_src
+    + nagyhazi/field:
+      You'll need GNU parallel to do this
+    #+begin_src bash
+      make field
+      make results.txt
+      make temp-magnetization.png
+      make temp-energy.png
+    #+end_src

kutinf/Makefile

@@ -19,16 +19,9 @@ HDRS = $(SRCS:.cc=.h)
 # Map each object file to a program name (e.g. foo.o -> foo).
 PROJECTS = $(basename $(OBJS))
 
-# Necessary here: it's our only target!
 
 all: $(PROJECTS)
 
-# root-finder: root-finder.cc
-# 	$(CXX) $(CXXFLAGS) $@.cc -o $@ $(LDFLAGS)
-
-# newton-cotes: newton-cotes.cc
-# 	$(CXX) $(CXXFLAGS) $@.cc -o $@ $(LDFLAGS)
-
 .PHONY: clean
 clean:
 	rm -fv $(OBJS) $(PROJECTS)

kutinf/nagyhazi/Makefile

@@ -25,6 +25,15 @@ field: $(OBJS)
 %.o: %.cc
 	$(CXX) $(CXXFLAGS) -o $@ -c $< $(LDFLAGS)
 
+results.txt: field
+	fish run.fish
+
+temp-magnetization.png: results.txt
+	gnuplot magn.gnuplot
+
+temp-energy.png: results.txt
+	gnuplot energy.gnuplot
+
 .PHONY: clean
 clean:
 	rm -fv $(OBJS) field

kutinf/nagyhazi/field.cc

@@ -7,8 +7,8 @@
 #include <cstdlib>
 
 
-#define RESY 800
-#define RESX 600
+#define RESY 100
+#define RESX 100
 #define MAXITER (RESX*RESY*iter_multiplier)
 using namespace std;
 

kutinf/nagyhazi/magn.gnuplot

@@ -2,16 +2,9 @@
 set encoding utf8
 set terminal png size 800,600 enhanced font 'IBM Plex Sans Text,14'
 
-
-
 set xlabel 'Temperature'
-set ylabel 'Total energy'
-
-set output "temp-energy.png"
-plot "results.txt" using 1:2 title "simulated energies" with points ps 1 pt 2 lw 2 lt rgb "#007faf"
-
-
 set ylabel 'Magnetization'
+
 set output "temp-magnetization.png"
 plot "results.txt" using 1:3 title "simulated magnetizations" with points ps 1 pt 2 lw 2 lt rgb "#af007f"